Product Overview
The Bently Nevada 330910-05-11-10-02-00 is a 3300 NSv proximity probe engineered for reliable vibration and position measurement in critical rotating machinery. This industrial automation module, part of the 3300 NSv series, delivers precise eddy-current sensing with enhanced chemical resistance—making it ideal for process compressor applications where aggressive media would degrade standard probes.
With a 1.0-meter total length, M10X1 thread, and armored construction, the 330910-05-11-10-02-00 integrates seamlessly into existing monitoring systems. It is mechanically and electrically interchangeable with the legacy 3300 RAM probe, simplifying upgrades without re-engineering your setup.
Key Specifications
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Linear Range: 1.5 mm (60 mils), starting at 0.25 mm from target
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Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil)
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Frequency Response: 0 to 10 kHz (+0, -3 dB) with up to 305 m of field wiring
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Probe Tip Material: Polyphenylene sulfide (PPS)
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Probe Case Material: AISI 304 stainless steel
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Operating Temperature: -52°C to +177°C
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Connector: Miniature coaxial ClickLoc
Technical Specifications
| Parameter |
Value |
| Model |
330910 (3300 NSv Probe, M10X1 thread, with armor) |
| Unthreaded Length |
50 mm |
| Overall Case Length |
110 mm |
| Total Length |
1.0 meter (39 in) |
| Probe DC Resistance |
4.2 ± 0.5 ohms (center to outer conductor) |
| Extension Cable DC Resistance |
Center: 0.220 Ω/m; Shield: 0.066 Ω/m |
| Extension Cable Capacitance |
69.9 pF/m typical |
| Recommended Gap Setting |
1.0 mm (40 mils) |
| Deviation from Best Fit Straight Line (DSL) |
Less than ±0.06 mm (±2.3 mils) |
| Minimum Target Size (flat target) |
8.9 mm (0.35 in) diameter; recommended 13 mm (0.5 in) |
| Probe Cable |
75 Ω coaxial, FEP insulated; lengths 0.5, 1, 5, or 7 m |
| Maximum Torque |
0.56 N•m (5 in•lb) |
| Minimum Bend Radius |
25.4 mm (1.0 in) |
| Storage Temperature |
-52°C to +177°C |
| Probe Case Torque (3/8-24 or M10X1) |
Max 33.9 N•m; Recommended 11.3 N•m |
| Thread Engagement (3/8-24) |
Max 0.563 in |
| System Weight (typical) |
14 to 150 g |
Industry Applications
This 330910-05-11-10-02-00 probe excels in turbomachinery monitoring, including steam turbines, centrifugal compressors, and pumps. Its superior side-view characteristics and chemical resistance make it a preferred choice for process compressors where exposure to corrosive gases is common.
When replacing older 3300 RAM probes, the 330910-05-11-10-02-00 drops in without modification, providing immediate performance upgrades. The extended linear range and stable scale factor ensure accurate shaft vibration and axial position readings, reducing false trips and unscheduled downtime.
Installation & Setup Guidance
For optimal performance, mount the probe with the recommended gap of 1.0 mm (40 mils). Use the specified torque values: finger tight for the probe tip, and for the probe case connector, apply 11.3 N•m (100 in•lb) recommended (max 33.9 N•m). For the first three threads, use 7.5 N•m recommended (max 22.6 N•m).
Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) conductors, or 0.25 to 0.75 mm² with ferrules. A three-conductor shielded triad cable is recommended, with a maximum length of 305 meters between the Proximitor Sensor and monitor. Ensure the bend radius of the probe cable does not exceed 25.4 mm.
Maintenance & Reliability
Routine inspection of the probe tip and cable is essential to maintain measurement integrity. Check for physical damage, contamination, or corrosion on the sensing face. The PPS tip and 304 SST case offer high durability, but verify the Viton O-ring seal if the probe is exposed to differential pressure.
Given the wide operating temperature range (-52°C to +177°C), the 330910-05-11-10-02-00 suits harsh environments. Periodic verification of the gap and scale factor ensures continued accuracy. With proper care, this probe delivers years of reliable service, minimizing lifecycle costs.
Selection Guide & Purchasing Advice
Before ordering, confirm that your system requires the M10X1 thread and armored cable configuration. The 1.0-meter total length is suitable for most installations, but verify your mounting clearance. This unit comes new in factory packing with a 12-month warranty.
PLC Source PRO offers genuine Bently Nevada parts with fast worldwide shipping. For assistance matching this 330910-05-11-10-02-00 probe to your monitoring system, contact our technical team.